https://www.merlincycles.com/shimano-xt-m8100-single-12-speed-chainset-with-chainring-180717.html

RRP £200. Extra ‘stocktake’ discount takes this down to £94. plain brown box so I’m guessing OEM (and came without the direct mount tool that I’ve seen posts suggesting is normally included aftermarket)

Shame it is only 175mm – its a good price and I would have had one ..

SLX nice price as well. Coming in at £56.25
https://www.merlincycles.com/shimano-slx-m7100-single-12-speed-chainset-with-chainring-180723.html

If you need the DM tool (you can’t really fit chainrings without it), there’s an eBay seller does nice CNC alu ones for about £13.

Way cheaper than the Park version anyway.

Hmm, nope £75 for me (not signed in) . Do you have a gold discount active?

Additional 25% reduction is applied at checkout.

Those SLX cranksets are damnably tempting.
But, they’re only available with a 52mm chainline.
That’s great if you have a ‘boost’ (fs) bike.

I ride fully rigid here, with a 50mm chainline.

My question is this:
If the chainline is determined by the crankset (shimano), but determined by the chainring (sram), would it be possible to achieve a 50mm chainline by using a direct mount sram chainring* on a shimano boost crankset?

(*are there any alternatives to sram in this regard?)

Moving a 2.5 spacer to non drive side would make it 49.5mm

Cool😉

One more question: is a 12 speed crankset compatible with a full shimano zee 10 speed group set?

One more question: is a 12 speed crankset compatible with a full shimano zee 10 speed group set?

Tooth width doesn’t change 10-11-12 speed (only outer chain width changes – chain plates get thinner), so as long as you’re happy with chainline, should be fine.

Sweet👌

Brand new slx crankset at 2nd hand price..exactly what was required!

Looks like 175mm crank arms are out of fashion